Oci-One Kanubi wrote:

I'm leaving Friday for three weeks of boating in the Rockies, and I
need a new water-resistant camera; digital with a lotta memory because
we'll be driving hard and sleeping (and cooking) in National Forests so
I don't know how often I'll get to a place that can download to CD for
me [1]. This will be for on-river fotos, and must survive the
occasional full immersion.

The latest Pentax (Optio WPi) is your best bet. Olympus also makes
a waterproof digicam, but I have not yet seen reliable test results for it.
Earlier Olympus Stylus (waterproof) digicams were not highly competitive.

Comparison table http://cacreeks.com/cameras.htm is still online
but contains many non-waterproof cameras. Personally I've got my eye
on the Fuji F30 due to it having ISO 3200, but it is not waterproof.

Main problem with the Optio WPi is that you get blurry results
(due to slow shutter speeds) when lighting is poor. This is because
it maxes out at ISO 200 or something.